Heliopsis parvifolia is a North American species of flowering plant in the family Asteraceae, known by the common name mountain oxeye.Heliopsis helianthoides. USDA NRCS Plant Guide.
Range and Habitat Heliopsis parvifolia is native to northern Mexico from Baja California east to Tamaulipas and south as far as Aguascalientes, as well as the southwestern United States (southern Arizona, southern New Mexico, western Texas).Article: El género Heliopsis (Heliantheae; Asteraceae) en México y las alcamidas presentes en sus raíces, Journal: Acta Botánica Mexicana 2004 (69:115-131), Authors: | Abraham García | Enrique Ramírez | Jorge Molina | in Spanish with English summary; color photos of leaves of several species on page 119, photos of achenes on page 120SEINet, Southwestern Biodiversity, Arizona chapter photos, description, distribution map It grows on open rocky mountain slopes and canyons at elevations between 1200 and 2500 meters.
Description Heliopsis parvifolia is a perennial herb up to tall, spreading by means of underground rhizomes. The plant generally produces 1-5 flower heads per stem. Each head contains 6-19 bright yellow ray florets surrounding 40 or more yellowish-brown disc florets. The fruit is an achene about long.
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External links Photo of herbarium specimen collected in Nuevo León in 1989